Weil Licht praktisch keine Verzögerung aufweist, können Leuchtspurgeschosse - Tracers - leichtwahrgenommen werden, wenn sie durchs Tal geflogen kommen.
Because light is virtually instantaneous, illuminated rounds — tracers — can be easilyperceived as they drill toward you across the valley.
How many English words do you know?
Test your English vocabulary size, and measure how many words you know.